US3950927A - Apparatus and method for measuring yarn storage at a spindle assembly station in a textile yarn processing machine - Google Patents

Apparatus and method for measuring yarn storage at a spindle assembly station in a textile yarn processing machine Download PDF

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Publication number
US3950927A
US3950927A US05/565,060 US56506075A US3950927A US 3950927 A US3950927 A US 3950927A US 56506075 A US56506075 A US 56506075A US 3950927 A US3950927 A US 3950927A
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United States
Prior art keywords
yarn
balloon
pulse generating
spindle assembly
package
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Expired - Lifetime
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US05/565,060
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English (en)
Inventor
Jurgen Kallman
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Palitex Project Co GmbH
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Palitex Project Co GmbH
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Publication date
Priority claimed from DE19742418246 external-priority patent/DE2418246C2/de
Application filed by Palitex Project Co GmbH filed Critical Palitex Project Co GmbH
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/32—Counting, measuring, recording or registering devices

Definitions

  • This invention relates to a method and apparatus for measuring yarn storage around a yarn reserve disc at a spindle assembly station in a textile yarn processing machine, particularly a two-for-one twister.
  • a yarn processing machine such as a two-for-one twister having spindle assembly stations in which each include a spindle assembly for carrying a package of yarn to be withdrawn and processed while producing a rotating balloon of the yarn around the package and having a hollow carrier mechanism for supporting the package of yarn to be processed and providing a passageway for receiving the yarn as it is withdrawn from the package and a driven rotor mechanism supporting the carrier mechanism and rotating relative thereto and including a yarn reserve disc providing a passageway for the yarn therethrough from the carrier mechanism and for storing a length of yarn therearound prior to the formation of the balloon of yarn, is observation of the amount of yarn storage on the reserve disc.
  • This yarn storage is, as is well known, the equalizing factor between internal drawing off tension of the yarn from the supply package and the yarn balloon forces. Excess or too little yarn storage gives rise to adverse consequential phenomina which results in yarn breakage. Yarn storage must be individually adjusted taking into account yarn quality, the rotational speed of the rotor mechanism of the spindle assembly and also, in part, the drawing-off velocity which is determined by the conventional take-up mechanism in the spindle assembly.
  • the determination of the yarn storage i.e. essentially the determination of the angle of wrap of the yarn around the reserve disc, is at present carried out by observation through a stroboscope, and, depending upon the angle of wrap or the amount of yarn around the reserve disc, the rotational speed of the rotor mechanism of the spindle assembly is varied, or alternatively the interior drawing-off tension of the yarn is equalized by means of a yarn break within the spindle assembly.
  • a first electrical pulse generating means is responsive to the frequency of rotation of the rotor mechanism for generating electrical pulses.
  • a second electrical pulse generating means is responsive to the frequency of rotation of the balloon of yarn for generating electrical pulses.
  • FIG. 1 is a schematic view illustrating a spindle assembly of a two-for-one twister yarn processing machine utilizing the improved apparatus and method of this invention
  • FIG. 2 is an enlarged, perspective view, partially in section, of the spindle assembly of FIG. 1 utilizing the apparatus of this invention and illustrating a desired amount of yarn storage on the reserve disc;
  • FIG. 3 is a sectional view, taken generally along the line 3--3 of FIG. 2;
  • FIG. 4 is a view somewhat like FIG. 3 utilizing an alternative embodiment of a portion of the apparatus of this invention and illustrating an undesired amount of yarn storage on the reserve disc;
  • FIG. 5 is a perspective view of a portion of the alternative apparatus of this invention, shown in FIG. 4.
  • FIG. 1 a schematic view of a portion of a single spindle assembly 10 at one spindle assembly station of a two-for-one twister yarn processing machine. It is to be understood that a plurality of these spindle assembly stations are provided in generally side-by-side relationship in two rows along the outside of the yarn processing machine. A full illustration and description of the entire two-for-one twister yarn processing machine is not given herein and is not believed to be necessary for an understanding of the present invention, the operation and structure of such two-for-one twister yarn processing machines being well understood by those with ordinary skill in the art.
  • each of the spindle assemblies 10 comprise a rotatably driven rotor mechanism 11 which includes a whorl 12 suitably rotatably mounted on the twister machine frame (not shown) and rotated by a continuous drive belt 14.
  • the rotor mechanism 11 further includes a generally horizontally extending reserve disc 16 secured to the whorl 12 for being rotated therewith and a generally vertically extending, hollow axle device 17 (see FIG. 3) extending upwardly from the reserve disc 16.
  • the reserve disc 16 and the hollow axle device 17 define a generally vertically extending yarn passageway 20 extending through the hollow axle device and partly through the reserve disc 16 and mating horizontally extending yarn passageways 21 extending through and out of the reserve disc 16.
  • the spindle assembly 10 further includes a carrier mechanism 25 for carrying a hollow package P of yarn Y and being rotatably mounted on the rotor mechanism 11 by bearings 26 (see FIG. 3) so that the rotor mechanism 11 may rotate relative to the carrier mechanism 25 which is maintained generally stationary.
  • the carrier mechanism 25 includes a basket device 27 which surrounds the package P of yarn Y and a hollow yarn package carrier member 28 onto which the hollow package P of yarn Y is supported.
  • the hollow carrier member 28 may also include a hollow yarn entry tube 30 carried within the carrier member 28 and extending outwardly therefrom axially of the supply package P supported thereon for receiving the yarn Y from the supply package P and providing an axially extending passageway 31 for receiving and allowing passage of the yarn Y therethrough and mating with the hollow interior of the carrier member 28 which provides a passageway 32 for the yarn and which mates with the passageways 20, 21 of the hollow axle 17 and the reserve disc 16.
  • a hollow yarn entry tube 30 carried within the carrier member 28 and extending outwardly therefrom axially of the supply package P supported thereon for receiving the yarn Y from the supply package P and providing an axially extending passageway 31 for receiving and allowing passage of the yarn Y therethrough and mating with the hollow interior of the carrier member 28 which provides a passageway 32 for the yarn and which mates with the passageways 20, 21 of the hollow axle 17 and the reserve disc 16.
  • the spindle assembly 10 further includes a balloon limitor device 33 surrounding the basket device 27 so as to contain the balloon of yarn Y formed on the outside of the basket device 26.
  • a yarn guide eyelet 40 is positioned above and in axial alignment with the yarn entry tube 30.
  • take-up mechanisms including a traversing device and a take-up roll for taking up and forming a package of the twisted or processed yarn processed by the spindle assembly 10.
  • the yarn Y passes from the package P through the yarn entry tube 30 and its passageway 31, through the passageway 32 of the carrier member 28, through the vertically extending yarn passageway 20 in the hollow axle device 17, through the horizontally extending passageway 21 in the reserve disc 16 and out of the reserve disc 16 in a horizontal direction.
  • the yarn then passes upwardly between the basket device 27 and the balloon limitor 33 and forms a balloon of yarn which is contained by the balloon limitor device 33.
  • the yarn then passes through yarn guide eyelet 40 and is taken up by the take-up mechanisms.
  • a two-for-one twist is inserted in the yarn during the above-noted path of travel due to rotation of the rotor mechanism 11 causing rotation of the balloon of yarn Y, described above.
  • the yarn emerging from the passageway 21 of the reserve disc 16 is wrapped around the outside circumference of the reserve disc 16, as shown in FIG. 2 due to the lag in rotation of the balloon of yarn with respect to rotation of the rotor mechanism 11 caused by the frictional resistance to rotation of the balloon of yarn and in part by the speed of the rotor mechanism 11 and the take-up mechanisms. It is desired to maintain storage of yarn around the reserve disc 16, but, as discussed above, too much storage of yarn around the reserve disc causes adverse effects in the yarn processing operation.
  • an angle of wrap around the reserve disc 16 of the yarn Y is approximately 200° which is a desirable angle of wrap or amount of yarn storage on the reserve disc 16.
  • an angle of wrap or yarn storage on the reserve disc 16 is approximately 630° which is excessive and will cause adverse effects, as discussed above, during the processing or twisting of the yarn Y.
  • a method and apparatus for measuring the amount of yarn storage around the reserve disc 16 of the spindle assembly 10.
  • the apparatus comprises first electrical pulse generating means 50 responsive to the frequency of rotation of the rotor mechanism 11 for generating electrical pulses.
  • This first electrical pulse generating means 50 preferably is in the form of a photoelectric cell switch mechanism suitably mounted on the twister machine frame adjacent the whorl 12 of the rotor mechanism 11.
  • the whorl 12 may include a strip 51 of material which may be detected by the photoelectric cell switch mechanism upon rotation of the rotor mechanism 11 and the whorl 12 so that upon each rotation of the rotor mechanism 11, the photoelectric cell switch mechanism will be actuated for generating an electrical pulse.
  • the apparatus further comprises a second electrical pulse generating means 55 which is suitably mounted on the twister machine adjacent the top edge of the balloon restrainer 33 and the basket device 27 for being responsive to the frequency of rotation of the balloon of yarn Y for generating electrical pulses.
  • this second electrical pulse generating means 55 comprises a photoelectric cell switch mechanism which is actuated upon each rotation of the balloon of yarn Y for generating an electrical pulse in response thereto.
  • photoelectric cell switch mechanisms may be any suitable, commmerically available mechanisms and the construction and operation thereof is well understood by those with ordinary skill in the art.
  • pulse counting devices 57, 58 are connected with the first and second electrical pulse generating means 50, 55, respectively, for counting a predetermined number of the electrical pulses generated by each of the respective pulse generating means 50, 55.
  • the pulse counting devices 57, 58, evaluating means 60 and readout device 61 are shown schematically only in the drawings and are illustrated therein as separate devices; however, separate or single arithmetic units for performing these counting, evaluating and digital readout displaying functions are commercially available and their operation is well understood by those with ordinary skill in the art. Accordingly, a detailed illustration and explanation of the construction and operation thereof is not deemed necessary herein for an understanding of the method and apparatus of this invention.
  • the time difference ⁇ t may be multiplied by the frequency of rotation of the rotor mechanism 11 in one second which is equal to the number of pulses generated by the first electrical pulse generating means 50 in 1 second, or the time difference ⁇ t may be divided by the time period between two revolutions of the rotor mechanism 11 or the time period between two pulses generated by the first electrical pulse generating means 50.
  • These values may be displayed on the readout means 61 as a measure of yarn storage on the reserve disc in fractions of a complete revolution of the yarn Y around the reserve disc 16, or it may be desired to have these results multiplied by 360 to express the storage of yarn Y on the reserve disc 16 in terms of angular degrees.
  • the second pulse generating means 55 may comprise a non-interacting, yarn feeler switch mechanism 55', as shown in FIGS. 4 and 5.
  • the pulse counting devices 57, 58, the evaluating device 60 and the readout device 61 may all constitute a single arithmetic unit, as discussed above, and may be permanently affixed at the particular spindle assembly 10, or may be separate from the spindle assembly 10 and portably brought into the vicinity of the particular spindle assembly 10 and electrically connected with the first and second electrical pulse generating devices 50, 55. Also, the first pulse generating device 50 may be permanently affixed to the spindle assembly 10 in the vicinity of the whorl 12 of the rotor mechanism 11 and the second pulse generating means 55', as shown in FIGS.
  • the second pulse generating device 55 and the arithmetic unit may be a connected portable unit brought to specific spindle assemblies 10.
  • the method may include the further step of multiplying the time difference ⁇ t by the frequency of rotation of the rotor mechanism 11 which is equal to the number of revolutions of the rotor mechanism 11 in one second as a measure of yarn storage on the reserve disc 16 in fractions of a complete revolution of yarn Y around the reserve disc 16.
  • the calculated time difference ⁇ t may be divided by the time between two revolutions of the rotor mechanism 11 as a measure of yarn storage on the reserve disc 16 in fractions of a complete revolution of yarn around the reserve disc.
  • the above results may be multiplied by 360 to obtain the angle of wrap of the yarn around the reserve disc 16 in angular degrees.
  • the method also includes the steps of generating electrical pulses in response to the frequency of rotation of the rotor mechanism 11 of the spindle assembly or the generation of one pulse for each rotation of the rotor mechanism, and generating electrical pulses in response to the frequency of rotation of the balloon of yarn or the generation of one pulse for each rotation of the balloon of yarn, and counting the predetermined number of pulses generated for each as a measure of the number of revolutions of each of the rotor mechanism and the balloon of yarn.
  • the travel pattern of the yarn Y due to air resistance and also friction between the yarn Y and the balloon limitor 33, causes a spatial curving of the yarn balloon.
  • a value representing this curving of the yarn balloon could be subtracted from the time ⁇ t calculated by the method and apparatus of this invention for a technically accurate measurement.
  • the measurement calculations obtained by the above described method and apparatus of this invention are not fundamentally affected as far as operation of the yarn processing machine is concerned in spite of the curving of the yarn balloon.
US05/565,060 1974-04-13 1975-04-04 Apparatus and method for measuring yarn storage at a spindle assembly station in a textile yarn processing machine Expired - Lifetime US3950927A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742418246 DE2418246C2 (de) 1974-04-13 Verfahren und Vorrichtung zur Messung der Fadenspeicherung einer Doppeldrahtzwirnspindel
DT2418246 1974-04-13

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US3950927A true US3950927A (en) 1976-04-20

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US (1) US3950927A (fr)
JP (1) JPS5322177B2 (fr)
BR (1) BR7502236A (fr)
CS (1) CS181173B2 (fr)
ES (1) ES436247A1 (fr)
GB (1) GB1463453A (fr)
IN (1) IN143591B (fr)
IT (1) IT1028933B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542618A (en) * 1983-03-23 1985-09-24 Palitex Project-Company Gmbh Thread pull-off aid of variable geometrical configuration for the overhead drawing-off of a thread from a creel bobbin
US4888944A (en) * 1987-03-19 1989-12-26 Zellweger Uster Ag Process and apparatus for production and quality control in multi-spindle textile machines
US4909027A (en) * 1987-04-10 1990-03-20 Zellweger Uster Ag Multi-spindle textile machine monitoring process and apparatus
US5115632A (en) * 1989-03-29 1992-05-26 Rieter Machine Works, Ltd. Ring spinning machine and method of operating a ring spinning machine
US5167112A (en) * 1990-03-29 1992-12-01 Palitex Project Company Gmbh Thread processing machine spindle assembly having mechanical adjustment mechanisms for devices within a rotating thread balloon
US5740666A (en) * 1989-08-03 1998-04-21 Yamaguchi; Hiroshi Method and system for controlling the rotational speed of a rotary ring member
US20110126506A1 (en) * 2008-07-19 2011-06-02 Oerlikon Textile Gmbh & Co. Kg Method for operating a spindle of a two-for-one twister or cabling machine
CN110656409A (zh) * 2019-09-30 2020-01-07 三峡大学 线材旋转外径判断装置及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869313A (en) * 1954-11-17 1959-01-20 Alfred W Vibber Method of and apparatus for plying strands
US2869315A (en) * 1954-07-19 1959-01-20 Deering Milliken Res Corp Spinning apparatus
US2939267A (en) * 1953-12-16 1960-06-07 Deering Milliken Res Corp Plying
US3445998A (en) * 1966-09-02 1969-05-27 Murata Machinery Ltd Tensioning method and device of two-for-one yarn twisters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939267A (en) * 1953-12-16 1960-06-07 Deering Milliken Res Corp Plying
US2869315A (en) * 1954-07-19 1959-01-20 Deering Milliken Res Corp Spinning apparatus
US2869313A (en) * 1954-11-17 1959-01-20 Alfred W Vibber Method of and apparatus for plying strands
US3445998A (en) * 1966-09-02 1969-05-27 Murata Machinery Ltd Tensioning method and device of two-for-one yarn twisters

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542618A (en) * 1983-03-23 1985-09-24 Palitex Project-Company Gmbh Thread pull-off aid of variable geometrical configuration for the overhead drawing-off of a thread from a creel bobbin
US4888944A (en) * 1987-03-19 1989-12-26 Zellweger Uster Ag Process and apparatus for production and quality control in multi-spindle textile machines
US4909027A (en) * 1987-04-10 1990-03-20 Zellweger Uster Ag Multi-spindle textile machine monitoring process and apparatus
US5115632A (en) * 1989-03-29 1992-05-26 Rieter Machine Works, Ltd. Ring spinning machine and method of operating a ring spinning machine
US5740666A (en) * 1989-08-03 1998-04-21 Yamaguchi; Hiroshi Method and system for controlling the rotational speed of a rotary ring member
US5167112A (en) * 1990-03-29 1992-12-01 Palitex Project Company Gmbh Thread processing machine spindle assembly having mechanical adjustment mechanisms for devices within a rotating thread balloon
US20110126506A1 (en) * 2008-07-19 2011-06-02 Oerlikon Textile Gmbh & Co. Kg Method for operating a spindle of a two-for-one twister or cabling machine
US8256199B2 (en) * 2008-07-19 2012-09-04 Oerlikon Textile Gmbh & Co. Kg. Method for operating a spindle of a two-for-one twister or cabling machine
KR101402824B1 (ko) * 2008-07-19 2014-06-03 주오랑 텍스타일 머시너리 컴퍼니 리미티드 투-포-원 트위스터 또는 케이블링 머신의 스핀들 작동방법
CN110656409A (zh) * 2019-09-30 2020-01-07 三峡大学 线材旋转外径判断装置及方法

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Publication number Publication date
IN143591B (fr) 1977-12-31
GB1463453A (fr) 1977-02-02
DE2418246A1 (fr) 1975-06-26
CS181173B2 (en) 1978-03-31
BR7502236A (pt) 1976-02-17
IT1028933B (it) 1979-02-10
DE2418246B1 (de) 1975-06-26
JPS5322177B2 (fr) 1978-07-07
ES436247A1 (es) 1977-01-01
JPS50138142A (fr) 1975-11-04

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